IOS SDK 客户端编译错误［与2.1 版MiPushSDK同时编译（1.7版时无以上问题）］

我刚开始用环信，原来项目同时使用MiPush，
当Other Linker Flags 只包含-ObjC时有如下错误：
duplicate symbol _OBJC_CLASS_$_XMPPElement in:
    [$Project]/Lighting/3rdParty/EaseMobSDK/lib/libEaseMobClientSDK.a(XMPPElement.o)
    [$Project]/Lighting/3rdParty/MiSDK/libMiPushSDK.a(XMPPElement.o)
duplicate symbol _OBJC_METACLASS_$_XMPPElement in:
    [$Project]/Lighting/3rdParty/EaseMobSDK/lib/libEaseMobClientSDK.a(XMPPElement.o)
    [$Project]/Lighting/3rdParty/MiSDK/libMiPushSDK.a(XMPPElement.o)
duplicate symbol _OBJC_IVAR_$_DDListEnumerator.numElements in:
    [$Project]/Lighting/3rdParty/EaseMobSDK/lib/libEaseMobClient
...
当增加-force_load时［模拟器下］
Undefined symbols for architecture x86_64:
  "webrtc::FIRFilterSSE2::FIRFilterSSE2(float const*, unsigned long, unsigned long)", referenced from:
      webrtc::FIRFilter::Create(float const*, unsigned long, unsigned long) in libEaseMobClientSDK.a(fir_filter.o)
［真机下］
duplicate symbol _WebRtcNsx_Create in:
    [$Project]/3rdParty/EaseMobSDK/lib/libEaseMobClientSDK.a(noise_suppression_x.o)
duplicate symbol _WebRtcNsx_Free in:
    [$Project]/3rdParty/EaseMobSDK/lib/libEaseMobClientSDK.a(noise_suppression_x.o)
duplicate symbol _WebRtcNsx_Init in:
    [$Project]/3rdParty/EaseMobSDK/lib/libEaseMobClientSDK.a(noise_suppression_x.o)
...
duplicate symbol _OBJC_CLASS_$_XMPPElement in:
    [$Project]/3rdParty/EaseMobSDK/lib/libEaseMobClientSDK.a(XMPPElement.o)
    [$Project]/3rdParty/MiSDK/libMiPushSDK.a(XMPPElement.o)
duplicate symbol _OBJC_METACLASS_$_XMPPElement in:
    [$Project]/3rdParty/EaseMobSDK/lib/libEaseMobClientSDK.a(XMPPElement.o)
    [$Project]/3rdParty/MiSDK/libMiPushSDK.a(XMPPElement.o)
duplicate symbol _OBJC_IVAR_$_DDListEnumerator.numElements in:
    [$Project]/3rdParty/EaseMobSDK/lib/libEaseMobClientSDK.a(DDList.o)
    [$Project]/3rdParty/MiSDK/libMiPushSDK.a(DDList.o)
...
 
以上情况如何处理，谢谢